Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A self-resetting beam-column joint of steel structure that can dissipate energy in stages

A beam-column joint and self-resetting technology, which is applied to building components, building structures, building types, etc., can solve problems such as weak energy consumption, and achieve the effect of eliminating residual deformation, good practice value and application prospects

Active Publication Date: 2022-03-11
SOUTHEAST UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At the same time, a large number of research results and engineering practices have shown that although shape memory alloys provide superelasticity and have stable energy dissipation characteristics, they are weaker than other metal energy dissipation devices.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A self-resetting beam-column joint of steel structure that can dissipate energy in stages
  • A self-resetting beam-column joint of steel structure that can dissipate energy in stages
  • A self-resetting beam-column joint of steel structure that can dissipate energy in stages

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will now be described in further detail with reference to the drawings. These figures are schematic diagrams, which will be described only in a schematic manner, and therefore it only shows the configurations related to the present invention.

[0027] The present invention aims to provide a steel structural beam node, and when the important coefficient of the structure is large or high in the regional seismic fortification requirements, it can cope with different structural seismic performance design requirements, and the principle is mainly through shape memory. The ultra-elasticity of the alloy long screw 4 achieves the self-reset function of the node under seismic action, eliminating residual deformation, relying on the shape memory alloy long screw and the U-shaped metal damper 6 to achieve the preset target of the seismic energy in the stage.

[0028] The disclosed self-replacement steel structural beam column nodes provided in the discloseable st...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a self-resetting steel structure beam-column joint that can consume energy in stages. The upper and lower parts of each H-shaped steel beam and H-shaped steel column are installed with stiffener connectors, which include angle steel and vertical stiffeners. The web of the H-shaped steel column is a symmetrical plane, and the shape memory alloy long screw passes through the short leg of the angle steel and the flange of the H-shaped steel column vertically on the same side of the symmetrical plane; it also includes several channel steels, the waist of the channel steel and the H-shaped steel column. The web of the steel beam is tightly fitted and connected by high-strength bolts, one end of the channel steel is connected to the flange of the H-shaped steel column, and a U-shaped metal damper is arranged between the outer wall of the leg of the channel steel and the inner wall of the flange of the adjacent H-shaped steel beam; The node can realize the self-resetting function of the node under the action of an earthquake through the superelasticity of the shape memory alloy long screw, and rely on the shape memory alloy long screw and U-shaped metal damper to achieve the preset goal of grading and dissipating seismic energy in stages. At the same time, the damaged components can be quickly disassembled and replaced after the earthquake, which is repairable.

Description

Technical field [0001] The present invention relates to a self-resetting steel structure beam node that can be degraded, belonging to the field of earthquake resistance and shock absorption technology in the construction structure. Background technique [0002] The self-reset beam column node is a resurable function of seismic structure. When it is possible to maintain an acceptable function, it can restore its useful function when it is necessary to maintain an acceptable function and it is necessary to repair or slightly restored after the earthquake. At this stage, from the reset steel structure beam column node usually rely on steel stranded pairs to provide recovery power, and the special tensile anchoring measures are required in the construction stage, and the prestressed loss and steel strand rust have occurred during the use period. Maintenance costs Higher. The shape memory alloy screw basically has no creep, and the material itself does not have the loss of the materia...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): E04H9/02E04B1/24E04B1/58E04B1/98
CPCE04H9/021E04H9/024E04B1/24E04B1/2403E04B1/5812E04B1/98E04B2001/2406
Inventor 俞昊然李维滨
Owner SOUTHEAST UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products